326401717133 has 2 divisors, whose sum is σ = 326401717134. Its totient is φ = 326401717132.

The previous prime is 326401716973. The next prime is 326401717139. The reversal of 326401717133 is 331717104623.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201409771369 + 124991945764 = 448787^2 + 353542^2 .

It is a cyclic number.

It is not a de Polignac number, because 326401717133 - 2¹⁴ = 326401700749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326401717139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163200858566 + 163200858567.

It is an arithmetic number, because the mean of its divisors is an integer number (163200858567).

Almost surely, 2^326401717133 is an apocalyptic number.

It is an amenable number.

326401717133 is a deficient number, since it is larger than the sum of its proper divisors (1).

326401717133 is an equidigital number, since it uses as much as digits as its factorization.

326401717133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 38.

The spelling of 326401717133 in words is "three hundred twenty-six billion, four hundred one million, seven hundred seventeen thousand, one hundred thirty-three".